PLA-450 current progress updating lvs
PLA-450, PLA-449 add specification of duration
update video title query service to be less restrictive
added php-nlp-tools vendor library
get video swap helper to use jaccard similarity to postprocess matches
PLA-450 upped jaccard similarity constraint
update video title test
uncomment caching
refactor changes to LVS helper
PLA-450 update code comments per @garthwebb
PLA-450 simplified duration validation per @garthwebb
Merge pull request #1110 from Wikia/PLA-450

PLA-450, PLA-449: LicensedVideoSwap updates